208147963 has 2 divisors, whose sum is σ = 208147964. Its totient is φ = 208147962.

The previous prime is 208147957. The next prime is 208147967. The reversal of 208147963 is 369741802.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208147963 is a prime.

It is not a weakly prime, because it can be changed into another prime (208147967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104073981 + 104073982.

It is an arithmetic number, because the mean of its divisors is an integer number (104073982).

Almost surely, 2^208147963 is an apocalyptic number.

208147963 is a deficient number, since it is larger than the sum of its proper divisors (1).

208147963 is an equidigital number, since it uses as much as digits as its factorization.

208147963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 208147963 is about 14427.3338839856. Note that the first 3 decimals coincide. The cubic root of 208147963 is about 592.6396739083.

The spelling of 208147963 in words is "two hundred eight million, one hundred forty-seven thousand, nine hundred sixty-three".